Wagon-brake



Patented Nov. 22, I898.

No. 6i4,628.

M. L. SENDERLlNG.

WA G O N B R A K E.

(Application filed Dec. 18, 1897.)

(No Model.)

NITED STATES PATENT Fr es.

MARTIN L. SENDERLING, OF JERSEY CITY, NEYV JERSEY.

WAGON-BRAKE.

SPECIFICATION forming part of Letters Patent No. 614,628, dated November22, 1898.

Application filed December 18, 1897. fierial No. 662,387. (No model.)

To all whom it may concern.-

Be it known that I, MARTIN L. SENDERLING, of Jersey City, in the countyof Hudson and State of New Jersey, have invented anew and usefulImprovement in WVagon-Brakes, of which the following is a specification.

Myinvention relates to an improvement in wagon-brakes in which provisionis made for holding the brake-shoe in contact with the wheel-tirethroughout the extent of the shoe whatever be the varying positions ofthe brake-supporting arm under difierent loads.

A practical embodiment of my invention is represented in theaccompanying drawings, in which- Figure l is a view of the brake in sideelevation, showing the spindle on the brake-supporting arm in section.Fig. 2 is a top plan view. Fig. 3 is a transverse section longitudinallyof the brake-supporting spindle along the line 3 3 of Fig. 2, and Fig. 4is a View in detail of the brake-regulating spring and its support.

As my present invention is confined to the structure of the brake itselfrather than to the brake-supporting arm and means for operating it, Ihave only shown in connection with the brake the brake-supportingspindle and a short section of the brake-supporting arm.

The brake-supporting arm is denoted by A, and the brake-supportingspindle, extending from the arm A in any well-known or approved manner,is denoted by a. The spindle is here shown as of tapered form, and thebrake is supported thereon by a socket-piece B, bearing at one endagainst a collar 11 and at its opposite end against a washer b, theseveral parts being held in position by a nut O, screwed onto the end ofthe spindle. The socket-piece B is in the present instance provided witha shoe D for sustaining the wear due to the grinding contact between itand the tire, the said shoe D being removably secured to the wings ofthe socket-piece by bolts cl. As thus constructed the brake is atliberty to swing on the spindle ainto such position as may be requiredto bring its face into a position substantially parallel with the treadof the wheel to which the brake is to be applied.

To hold the brake in an adjusted position where it will be the mosteffective undernormal conditions and at the same time permit upon lugs19 b extending from the socketpiece 13 upon opposite sides of thespindle a, as clearly indicated in Fig. 2. It follows that when thecollar E is fixed to the spindle the spring F will hold the brake by itsengagement with the lugs 11* b yieldingly in position against a rotarymovement on the spindle a.

To adjust the brake to the proper tension to do the most effective workrequires simply the loosening of the set-screw e and the rota tion ofthe socket-piece B, which, through the connection of the spring F, willcause the collar E to rotate therewith into such position as to bringthe face of the-brake parallel with the face of the wheel,and thenfasten the set-screw e to hold the parts normally in the adjustedposition. This normal position may be one in which the face of the brakeis parallel with the face of the wheel when the wagon is loaded with anordinary load, in which case if the Wagon-body be spring=supported alighter load or a heavier load would have a tendency to change therelative directions of the face of the brake and face of the wheel withrespect to one another. This, however, would be promptly accounted forwhenever the brake was applied to the wheel by the yielding of thespring F at that end of the brake which first engaged the face of thewheel, thereby permitting the entire face of the brake to be broughtfirmly into contact with the face of the wheel as though in its normalposition.

It is obvious that changes might be resorted to in the form andarrangement of the several parts without departing from the spirit andscope of my invention. Hence I do not wish to limit myself strictly tothe structure herein shown and described; but

What I claim is- 1. The combination with a brake-supporting spindle anda brake mounted thereon in free rotary adjustment, the said brake beingrotary adjustment, of a collar mounted on the spindle independently ofthe brake, means for locking the collar in different rotary adjustmentson the spindle and a spring carried by the collar and having a bearingupon the brake upon the opposite sides of its axis of rotation,substantially as set forth.

MARTIN L. SENDERLING. YVitnesses:

FREDK. HAYNES, EDWARD VIEsER.

